Oh hun there is nothing worse than not liking your pram. I was the same. I got a Hauck Condor travel system and HATED it. Money was tight so we went for the cheap option. It was really bulky and hard to put the car seat on and off. I found it really heavy to unfold. It also squeaked constantly I used to get embarassed going round the shops and often had to spray WD40 on it. The wheels starting seizing up so I phoned Tesco and explained the wheels and brake was faulty and they organised a full refund for me no questions asked. They sent a courier to the house and they took it away, plus gave me an extra £20 goodwill as the courier kept messing me about. I then ordered the Obaby Zezu in purple which I LOVE. its so light and easy to maneovre and the car seat clips on and off like a dream. Its supposed to be like a cheaper version of the Mamas n Papas Skate. I would recommend it to anyone a few of my friends have it and love it too.
What about the shop you got your pram from could you chance your luck and tell them its faulty, they might not check it and offer you a refund/exchange for something else?
xx